1,720,955 research outputs found
Relicts of a forested past: Southernmost distribution of the hairy frog genus Trichobatrachus Boulenger, 1900 (Anura: Arthroleptidae) in the Serra do Pingano region of Angola with comments on its taxonomic status
No full textErnst, Raffael, Nienguesso, Alvaro Bruno Toto, Lautenschläger, Thea, Barej, Michael F., Scmitz, Andreas, Hölting, Monique (2014): Relicts of a forested past: Southernmost distribution of the hairy frog genus Trichobatrachus Boulenger, 1900 (Anura: Arthroleptidae) in the Serra do Pingano region of Angola with comments on its taxonomic status. Zootaxa 3779 (2): 297-300, DOI: http://dx.doi.org/10.11646/zootaxa.3779.2.1
RAFFAEL ERNST, ALVARO BRUNO TOTO NIENGUESSO, THEA LAUTENSCHLÄGER MICHAEL F.BAREJ, ANDREAS SCMITZ & MONIQUE HÖLTING (2014) Relicts of a forested past
No full textErnst, Raffael, Nienguesso, Alvaro Bruno Toto, Lautenschläger, Thea, F.Barej, Michael, Scmitz, Andreas, Hölting, Monique (2014): RAFFAEL ERNST, ALVARO BRUNO TOTO NIENGUESSO, THEA LAUTENSCHLÄGER MICHAEL F.BAREJ, ANDREAS SCMITZ & MONIQUE HÖLTING (2014) Relicts of a forested past. Zootaxa 3795 (5): 600-600, DOI: http://dx.doi.org/10.11646/zootaxa.3795.5.1
FIGURE 1 in Relicts of a forested past: Southernmost distribution of the hairy frog genus Trichobatrachus Boulenger, 1900 (Anura: Arthroleptidae) in the Serra do Pingano region of Angola with comments on its taxonomic status
No full textFIGURE 1. Counterclockwise from top left: Montane forest remnants in the Serra do Uíge ecosystem. Adult female Trichobatrachus cf. robustus (MTD 48622) collected at the Serra do Pingano, Uíge Province. Tadpole (MTD 48623: 2) collected in the Mbalage creek in the Serra do Pingano, Uíge Province, Angola in lateral, ventral, and dorsal view (left top to bottom) and detail of the oral disc (right). Map showing known distribution of Trichobatrachus robustus sensu lato (green polygon) and newly recorded localities. Blue cross represents northernmost record, blue square represents previously assumed southernmost record, blue triangle represents record from the Cross River region of Nigeria, blue pentagon represents confirmed record from Congo, and red circle represents new records in Angola (tadpoles & adult specimen). Spatial data derived from HerpNET data portal (http://www.herpnet.org), accessed 26 October 2013, IUCN, Conservation International & NatureServe. 2004. Trichobatrachus robustus. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1 (http://www.iucnredlist.org), accessed 26 October 2013, and this study.Published as part of Ernst, Raffael, Nienguesso, Alvaro Bruno Toto, Lautenschläger, Thea, Barej, Michael F., Scmitz, Andreas & Hölting, Monique, 2014, Relicts of a forested past: Southernmost distribution of the hairy frog genus Trichobatrachus Boulenger, 1900 (Anura: Arthroleptidae) in the Serra do Pingano region of Angola with comments on its taxonomic status, pp. 297-300 in Zootaxa 3779 (2) on page 298, DOI: 10.11646/zootaxa.3779.2.10, http://zenodo.org/record/491033
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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